JP6556269B2 - Inspection equipment - Google Patents

Inspection equipment Download PDF

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JP6556269B2
JP6556269B2 JP2017566263A JP2017566263A JP6556269B2 JP 6556269 B2 JP6556269 B2 JP 6556269B2 JP 2017566263 A JP2017566263 A JP 2017566263A JP 2017566263 A JP2017566263 A JP 2017566263A JP 6556269 B2 JP6556269 B2 JP 6556269B2
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display panel
dimension
holding
inspection apparatus
unit
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JPWO2017138081A1 (en
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彰良 宮谷
彰良 宮谷
信宏 米澤
信宏 米澤
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Sakai Display Products Corp
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Liquid Crystal (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Description

本発明は、可撓性を有する表示パネルを湾曲させて検査するための検査用装置に関する。  The present invention relates to an inspection apparatus for inspecting a flexible display panel by bending it.

近年、フラットパネルディスプレイの代表である液晶ディスプレイ（ＬＣＤ）は、中小型パネル分野だけでなくＴＶ用の大型映像表示パネル分野でも主流になっている。このような大画面の表示パネルは、平面の壁だけでなく曲面の壁に取り付けることができれば、設置場所を拡大することができ、また、表示パネルを湾曲させることで臨場感又は見やすさを向上させることができる。このため、表示面が湾曲した表示パネルの要望が高まっている。  In recent years, liquid crystal displays (LCDs), which are representative of flat panel displays, have become mainstream not only in the field of small and medium-sized panels but also in the field of large-sized video display panels for TV. If such a large-screen display panel can be attached to a curved wall as well as a flat wall, the installation location can be expanded, and the display panel can be curved to improve the sense of presence or visibility. Can be made. For this reason, there is an increasing demand for a display panel having a curved display surface.

また、平面状の表示パネルを湾曲させて枠体等に組み込んだ後に表示パネルの検査を実施した場合に、表示パネルの不良が発見されたときには、湾曲させた表示パネルの弾性変形を徐々に解除した後に表示パネルを取り外す作業が必要となり作業効率が低下する。  In addition, when a display panel is inspected after a flat display panel is bent and incorporated into a frame or the like, if a defect is discovered, the elastic deformation of the curved display panel is gradually released. After that, it is necessary to remove the display panel, and the work efficiency is lowered.

そこで、表示パネルの曲面形状と同様の形状の載置面を備える載置部に表示パネルを載置し、ハンドル部を押し下げて回転部を載置部側へ回転させて表示パネルを湾曲させて検査する検査装置が開示されている（特許文献１参照）。  Therefore, the display panel is placed on a placement portion having a placement surface having the same shape as the curved shape of the display panel, and the handle portion is pushed down to rotate the rotation portion toward the placement portion, thereby bending the display panel. An inspection device for inspection is disclosed (see Patent Document 1).

特開平１０−２６０４２４号公報JP-A-10-260424

特許文献１の検査装置にあっては、検査時には、湾曲した表示パネルは弾性変形をしているので、検査後にハンドル部を押し上げると、表示パネルが弾けて破損する可能性がある。また、載置面は、ある特定の曲率で湾曲させてあるので、特定の曲率での湾曲状態でしか表示パネルを検査することができない。  In the inspection apparatus of Patent Document 1, since the curved display panel is elastically deformed at the time of inspection, if the handle portion is pushed up after the inspection, the display panel may be flipped and damaged. Moreover, since the mounting surface is curved with a specific curvature, the display panel can be inspected only in a curved state with a specific curvature.

本発明は斯かる事情に鑑みてなされたものであり、表示パネルが弾けて破損することを防止することができる検査用装置を提供することを目的とする。  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an inspection apparatus capable of preventing the display panel from being broken due to bounce.

本発明の実施の形態に係る検査用装置は、可撓性を有する表示パネルを湾曲させて検査するための検査用装置であって、可撓性を有し、前記表示パネルの両面から該表示パネルを挟持する挟持部と、該挟持部の両端側を保持する一対の保持部と、該挟持部の湾曲度合いを設定すべく前記保持部同士の離隔方向の寸法を調整する調整部とを備えることを特徴とする。  An inspection apparatus according to an embodiment of the present invention is an inspection apparatus for bending and inspecting a flexible display panel, and has flexibility and displays the display from both sides of the display panel. A clamping unit that clamps the panel, a pair of holding units that hold both ends of the clamping unit, and an adjustment unit that adjusts the distance between the holding units to set the degree of curvature of the clamping unit. It is characterized by that.

本発明によれば、表示パネルが弾けて破損することを防止することができる。  According to the present invention, it is possible to prevent the display panel from being flipped and damaged.

本実施の形態の検査用装置の構成の一例を示す平面図である。It is a top view which shows an example of a structure of the apparatus for a test | inspection of this Embodiment. 本実施の形態の検査用装置の構成の一例を示す正面図である。It is a front view which shows an example of a structure of the apparatus for a test | inspection of this Embodiment. 本実施の形態の検査用装置の挟持部を湾曲させた場合の一例を示す平面図である。It is a top view which shows an example at the time of curving the clamping part of the apparatus for an inspection of this Embodiment. 本実施の形態の検査用装置の光源部の動作状態の一例を示す正面図である。It is a front view which shows an example of the operation state of the light source part of the apparatus for a test | inspection of this Embodiment. 本実施の形態の検査用装置の挟持部を湾曲させた場合の一例を示す正面図である。It is a front view which shows an example at the time of curving the clamping part of the apparatus for an inspection of this Embodiment. 従来の平面バックライトを用いた検査用装置の要部を示す正面図である。It is a front view which shows the principal part of the apparatus for a test | inspection using the conventional plane backlight.

以下、本発明をその実施の形態を示す図面に基づいて説明する。図１は本実施の形態の検査用装置１００の構成の一例を示す平面図であり、図２は本実施の形態の検査用装置１００の構成の一例を示す正面図である。本実施の形態の検査用装置１００は、長尺のレール部１１、１２、挟持部４０、一対の保持部２１、２２、及び調整部６０などを備える。検査用装置１００は、可撓性を有する表示パネル５０を湾曲させて検査するための装置である。  Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is a plan view showing an example of the configuration of the inspection apparatus 100 of the present embodiment, and FIG. 2 is a front view showing an example of the configuration of the inspection apparatus 100 of the present embodiment. The inspection apparatus 100 according to the present embodiment includes long rail portions 11 and 12, a holding portion 40, a pair of holding portions 21 and 22, an adjustment portion 60, and the like. The inspection apparatus 100 is an apparatus for inspecting a flexible display panel 50 by bending it.

表示パネル５０は、ガラス基板、カラーフィルタ、液晶、偏光フィルタ、配向膜、透明電極、液晶ドライバ、及びスペーサ等を有する、いわゆる、オープンセル状態のパネルであり、バックライト、ベゼル及びその他の機構部材等が取り付けられる前のパネルである。表示パネル５０は、平面視で矩形状をなし、所定の縦横寸法を有する。なお、以下の説明では、便宜上、寸法の長い方を横とし、短い方を縦とするが、正方形状の表示パネル５０を除外するものではない。  The display panel 50 is a so-called open cell panel having a glass substrate, a color filter, a liquid crystal, a polarizing filter, an alignment film, a transparent electrode, a liquid crystal driver, a spacer, and the like, and includes a backlight, a bezel, and other mechanism members. It is a panel before etc. are attached. The display panel 50 has a rectangular shape in plan view and has predetermined vertical and horizontal dimensions. In the following description, for the sake of convenience, the longer dimension is horizontal and the shorter dimension is vertical, but the square display panel 50 is not excluded.

レール部１１、１２は、表示パネル５０の縦寸法より長い寸法だけ離隔させて対向配置されている。すなわち、レール部１１、１２は、表示パネル５０の横方向に平行に配置されている。なお、レール部１１、１２は、不図示の基台に固定されている。  The rail portions 11 and 12 are opposed to each other with a distance longer than the vertical dimension of the display panel 50. That is, the rail portions 11 and 12 are arranged in parallel to the horizontal direction of the display panel 50. In addition, the rail parts 11 and 12 are being fixed to the base not shown.

レール部１１、１２には、レール部１１、１２の長手方向（表示パネル５０の横方向）に移動可能な状態で一対の保持部２１、２２が取り付けられている。なお、本実施の形態では、保持部２１、２２の両者がレール部１１、１２の長手方向に沿って移動可能となる構成を示すが、これに限定されるものではなく、保持部２１、２２の一方をレール部１１、１２に固定し、他方のみを移動可能に取り付ける構成であってもよい。  A pair of holding portions 21 and 22 are attached to the rail portions 11 and 12 so as to be movable in the longitudinal direction of the rail portions 11 and 12 (lateral direction of the display panel 50). In addition, in this Embodiment, although both holding parts 21 and 22 show the structure which can move along the longitudinal direction of the rail parts 11 and 12, it is not limited to this, The holding parts 21 and 22 are shown. One of these may be fixed to the rail parts 11 and 12 and only the other may be movably attached.

挟持部４０は、可撓性を有するとともに、透明であって、表示パネル５０の縦横寸法より大きい縦横寸法を有し、表示パネル５０の両面から表示パネル５０を挟持する。挟持部４０の一端側は、保持部２１により保持され、挟持部４０の他端側は、保持部２２により保持されている。  The clamping unit 40 is flexible and transparent, has a vertical and horizontal dimension larger than the vertical and horizontal dimensions of the display panel 50, and holds the display panel 50 from both sides of the display panel 50. One end side of the clamping unit 40 is held by the holding unit 21, and the other end side of the clamping unit 40 is held by the holding unit 22.

図１及び図２に示すように、保持部４０は、表示パネル５０よりも縦横寸法が大きい矩形状であって、表示パネル５０を載置する底板４２、底板４２と同等の形状を有し、表示パネル５０を底板４２の方へ押圧することができる天板４１を有する。天板４１、底板４２は、可撓性を有し、透明の合成樹脂製であり、例えば、アクリル板で構成することができるが、アクリル板に限定されるものではない。  As shown in FIGS. 1 and 2, the holding portion 40 has a rectangular shape whose vertical and horizontal dimensions are larger than those of the display panel 50, and has a shape equivalent to the bottom plate 42 and the bottom plate 42 on which the display panel 50 is placed, A top plate 41 that can press the display panel 50 toward the bottom plate 42 is provided. The top plate 41 and the bottom plate 42 have flexibility and are made of a transparent synthetic resin. For example, the top plate 41 and the bottom plate 42 can be made of an acrylic plate, but are not limited to an acrylic plate.

底板４２の両端部には、平面視が矩形状の支持部４２１を固定してある。支持部４２１は、それぞれ保持部２１、２２に固定されたヒンジ部４２２を有する。ヒンジ部４２２は、表示パネル５０の縦方向と平行な軸の回りに支持部４２１を回動可能に構成してある。また、図示していないが、底板４２は、表示パネル５０を載置する際に表示パネル５０を所定の位置に固定するための位置決め部を有する。  Support parts 421 having a rectangular shape in plan view are fixed to both ends of the bottom plate 42. The support portion 421 has hinge portions 422 fixed to the holding portions 21 and 22, respectively. The hinge part 422 is configured so that the support part 421 can be rotated around an axis parallel to the vertical direction of the display panel 50. Although not shown, the bottom plate 42 has a positioning portion for fixing the display panel 50 at a predetermined position when the display panel 50 is placed.

天板４１の両端部には、平面視が矩形状の支持部４１１を固定してある。保持部２１側の支持部４１１と支持部４２１とは、固定部材４４で固定される。また、保持部２２側の支持部４１１と支持部４２１とは、固定部材４３で固定される。固定部材４３、４４で支持部４１１及び支持部４２１の両端側を固定し、ロックすることにより、表示パネル５０は、天板４１で底板４２の方に押圧され、表示パネル５０が天板４１と底板４２との間に確実に挟持される。  Support parts 411 having a rectangular shape in plan view are fixed to both ends of the top plate 41. The support part 411 and the support part 421 on the holding part 21 side are fixed by a fixing member 44. Further, the support part 411 and the support part 421 on the holding part 22 side are fixed by a fixing member 43. By fixing and locking both ends of the support portion 411 and the support portion 421 with the fixing members 43 and 44, the display panel 50 is pressed toward the bottom plate 42 by the top plate 41, and the display panel 50 is connected to the top plate 41. It is securely sandwiched between the bottom plate 42.

なお、固定部材４３、４４は、支持部４１１及び支持部４２１の両端側を固定することができるものであれば、どのような構造又は部材でもよい。例えば、嵌め込む構造、ねじ等で固定する構造でもよい。また、支持部４１１及び支持部４２１の一方をヒンジ構造として、天板４１の一端側を、表示パネル５０の縦方向と平行な軸の回りに回動可能に構成し、天板４１を底板４２に対して開放可能に構成してもよい。  The fixing members 43 and 44 may be any structure or member as long as it can fix both ends of the support portion 411 and the support portion 421. For example, a structure to be fitted or a structure to be fixed with a screw or the like may be used. In addition, one of the support part 411 and the support part 421 has a hinge structure, and one end side of the top plate 41 is configured to be rotatable around an axis parallel to the vertical direction of the display panel 50, and the top plate 41 is configured as the bottom plate 42. It may be configured to be openable.

底板４２に対向配置され、底板４２（挟持部４０）の方へ光を照射すべく、表示パネル５０の横方向（保持部２１、２２の離隔方向）に沿って複数の光源部３１、３２、３３、３４、３５、３６を配置してある。光源部３１〜３６は、バックライトとしての機能を有するものであり、面光源をなし、それぞれが分離独立に構成されている。  A plurality of light source units 31, 32, which are arranged to face the bottom plate 42 and illuminate light toward the bottom plate 42 (the clamping unit 40) along the lateral direction of the display panel 50 (the separation direction of the holding units 21, 22). 33, 34, 35, and 36 are arranged. The light source units 31 to 36 have a function as a backlight, form a surface light source, and are configured separately and independently.

調整部６０は、例えば、不図示の駆動機構を有し、レール部１１、１２に沿って保持部２１、２２を移動させることができる。  The adjustment unit 60 includes, for example, a drive mechanism (not shown) and can move the holding units 21 and 22 along the rail units 11 and 12.

すなわち、調整部６０は、保持部２１、２２同士の離隔方向（表示パネル５０の横方向）の寸法Ｘを調整する。図１及び図２に示すように、調整部６０が、保持部２１、２２同士の離隔方向の寸法Ｘを所定値Ｘ１に調整した場合、挟持部４０（天板４１、底板４２）は、平面状をなすようにしてある。  That is, the adjustment unit 60 adjusts the dimension X in the separation direction between the holding units 21 and 22 (the horizontal direction of the display panel 50). As shown in FIGS. 1 and 2, when the adjustment unit 60 adjusts the distance X between the holding units 21 and 22 to a predetermined value X1, the clamping unit 40 (top plate 41 and bottom plate 42) is flat. It is in a shape.

次に、本実施の形態の検査用装置１００による表示パネル５０の検査方法について説明する。まず、調整部６０が、保持部２１、２２同士の離隔方向の寸法Ｘを所定値Ｘ１に調整した場合、挟持部４０に対して表示パネル５０を着脱可能にしてある。  Next, a method for inspecting the display panel 50 using the inspection apparatus 100 according to the present embodiment will be described. First, when the adjusting unit 60 adjusts the dimension X in the separation direction between the holding units 21 and 22 to the predetermined value X1, the display panel 50 can be attached to and detached from the holding unit 40.

例えば、調整部６０が寸法Ｘを所定値Ｘ１に調整した場合に、挟持部４０は平面状をなし、固定部材４３、４４のロックを解除するようにすれば、表示パネル５０が平面状の状態で表示パネル５０の装着することができる。そして、表示パネル５０を底板４２に載置した後に、天板４１と底板４２との間で表示パネル５０を挟持し、固定部材４３、４４で支持部４１１及び支持部４２１の両端側を固定し、ロックすることにより、表示パネル５０の装着が完了する。  For example, when the adjusting unit 60 adjusts the dimension X to the predetermined value X1, the holding unit 40 has a flat shape, and the display panel 50 is in a flat state if the fixing members 43 and 44 are unlocked. The display panel 50 can be attached. After the display panel 50 is placed on the bottom plate 42, the display panel 50 is sandwiched between the top plate 41 and the bottom plate 42, and the support members 411 and the support portions 421 are fixed at both ends with the fixing members 43 and 44. By mounting, the mounting of the display panel 50 is completed.

また、表示パネル５０の所定の電極には、不図示の駆動信号供給部からのコネクタを接続することにより、表示パネル５０へ所要の駆動信号を供給して表示パネル５０の検査を行うことができる。  Further, by connecting a connector from a drive signal supply unit (not shown) to a predetermined electrode of the display panel 50, a required drive signal can be supplied to the display panel 50 to inspect the display panel 50. .

次に、調整部６０は、保持部２１を図１中の符号Ａで示す方向に所定の速度で移動させるとともに、保持部２２を図１中の符号Ｂで示す方向に所定の速度で移動させる。これにより、調整部６０は、保持部２１、２２同士の離隔方向の寸法Ｘを調整して、挟持部４０（すなわち、表示パネル５０）の湾曲度合いを所要の値に設定することができる。  Next, the adjusting unit 60 moves the holding unit 21 at a predetermined speed in the direction indicated by reference symbol A in FIG. 1 and moves the holding unit 22 at a predetermined speed in the direction indicated by reference symbol B in FIG. . Thereby, the adjustment part 60 can adjust the dimension X of the separation direction of the holding | maintenance parts 21 and 22, and can set the curve degree of the clamping part 40 (namely, display panel 50) to a required value.

図３は本実施の形態の検査用装置１００の挟持部４０を湾曲させた場合の一例を示す平面図である。図３に示すように、表示パネル５０を湾曲させた状態で、表示パネル５０に所定の駆動信号を供給して表示パネル５０を検査することができる。  FIG. 3 is a plan view showing an example of the case where the clamping unit 40 of the inspection apparatus 100 of the present embodiment is curved. As shown in FIG. 3, the display panel 50 can be inspected by supplying a predetermined drive signal to the display panel 50 while the display panel 50 is curved.

図４は本実施の形態の検査用装置１００の光源部３１〜３６の動作状態の一例を示す正面図である。光源調整部７０は、調整部６０が調整する寸法Ｘの長短に応じて、各光源部３１〜３６と挟持部４０（すなわち、表示パネル５０）との離隔距離Ｙを調整する。  FIG. 4 is a front view illustrating an example of an operation state of the light source units 31 to 36 of the inspection apparatus 100 according to the present embodiment. The light source adjustment unit 70 adjusts the separation distance Y between the light source units 31 to 36 and the clamping unit 40 (that is, the display panel 50) according to the length of the dimension X adjusted by the adjustment unit 60.

図４の例では、調整部６０が、保持部２１、２２同士の離隔方向の寸法Ｘを短くするのに応じて、光源調整部７０は、光源部３３、３４の位置を表示パネル５０の方へ押し上げて表示パネル５０の方へ近づける。また、光源調整部７０は、光源部３２、３５の光の照射方向を表示パネル５０の方へ向けるべく、光源部３２、３５の発光面が表示パネル５０の光の入射面と略平行になるように光源部３２、３５を傾斜させる。なお、光源部３１、３６の位置は固定されたままである。  In the example of FIG. 4, the light source adjustment unit 70 moves the positions of the light source units 33 and 34 toward the display panel 50 as the adjustment unit 60 shortens the dimension X in the separation direction between the holding units 21 and 22. To the display panel 50. In addition, the light source adjustment unit 70 makes the light emitting surfaces of the light source units 32 and 35 substantially parallel to the light incident surface of the display panel 50 so that the light irradiation directions of the light source units 32 and 35 are directed toward the display panel 50. Thus, the light source sections 32 and 35 are inclined. Note that the positions of the light source units 31 and 36 remain fixed.

光源部３１〜３６の光の照射方向及び表示パネル５０との距離の調整は、一例であって、図４に例示する構成に限定されるものではない。また、光源部３１〜３６の数も図４の例に限定されるものではない。すなわち、湾曲した表示パネル５０の全面に亘って均等に光を照射することができれば、光源部をどのように配置、調整してもよい。  Adjustment of the light irradiation direction of the light source parts 31-36 and the distance with the display panel 50 is an example, and is not limited to the structure illustrated in FIG. Moreover, the number of the light source parts 31-36 is not limited to the example of FIG. That is, the light source unit may be arranged and adjusted in any way as long as light can be evenly irradiated over the entire surface of the curved display panel 50.

図５は本実施の形態の検査用装置１００の挟持部４０を湾曲させた場合の一例を示す正面図であり、図６は従来の平面バックライトを用いた検査用装置の要部を示す正面図である。図６に示すように、従来の検査用装置では、表示パネル５０を湾曲させた場合、表示パネル５０の各部分が離隔方向と交差する方向に変位する変位量は、表示パネル５０の中央部分が端部側に比べて大きい。このため、図６に示すように、表示パネル５０に光を照射する平面バックライトの位置が固定されている場合、平面バックライトと表示パネル５０との距離は、表示パネル５０の中央部分が長く、端部側が短くなり、表示パネル５０を均一の輝度で検査することができない。  FIG. 5 is a front view showing an example of the case where the clamping unit 40 of the inspection apparatus 100 according to the present embodiment is curved, and FIG. 6 is a front view showing a main part of the inspection apparatus using a conventional flat backlight. FIG. As shown in FIG. 6, in the conventional inspection apparatus, when the display panel 50 is curved, the amount of displacement in which each part of the display panel 50 is displaced in the direction intersecting the separation direction is the central part of the display panel 50. Larger than the end side. Therefore, as shown in FIG. 6, when the position of the flat backlight that irradiates light to the display panel 50 is fixed, the distance between the flat backlight and the display panel 50 is longer in the central portion of the display panel 50. The end side is shortened, and the display panel 50 cannot be inspected with uniform brightness.

一方、本実施の形態の検査用装置１００によれば、図５に示すように、光源調整部７０が、調整部６０が調整する寸法Ｘの長短に応じて、各光源部３１〜３６と挟持部４０（表示パネル５０）との離隔距離Ｙ、及び各光源部３１〜３６の傾きを調整するので、例えば、挟持部４０（表示パネル５０）の中央部分に対応する光源部の離隔方向と交差する方向に移動する移動寸法を、挟持部４０（表示パネル５０）の端部側に対応する光源部の離隔方向と交差する方向に移動する移動寸法よりも大きくすることができる。このため、光源部と表示パネル５０（中央部分及び端部側）との距離を同等にすることができ、表示パネル５０を均一の輝度で検査することができる。  On the other hand, according to the inspection apparatus 100 of the present embodiment, as shown in FIG. 5, the light source adjustment unit 70 sandwiches the light source units 31 to 36 according to the length of the dimension X adjusted by the adjustment unit 60. Since the separation distance Y from the unit 40 (display panel 50) and the inclination of each of the light source units 31 to 36 are adjusted, for example, it intersects with the separation direction of the light source unit corresponding to the central portion of the sandwiching unit 40 (display panel 50). The moving dimension that moves in the moving direction can be made larger than the moving dimension that moves in the direction intersecting with the separation direction of the light source unit corresponding to the end side of the clamping unit 40 (display panel 50). For this reason, it is possible to make the distance between the light source unit and the display panel 50 (the central portion and the end side) equal, and the display panel 50 can be inspected with uniform luminance.

表示パネル５０の検査が終了すると、調整部６０は、保持部２１を図３中の符号Ｃで示す方向に移動し、保持部２２を図３中の符号Ｄで示す方向に移動することにより、図１及び図２に示す状態に戻す。これにより、表示パネル５０を平面状に戻すことができ、表示パネル５０の弾性変形を解除することができる。  When the inspection of the display panel 50 is completed, the adjustment unit 60 moves the holding unit 21 in the direction indicated by the symbol C in FIG. 3 and moves the holding unit 22 in the direction indicated by the symbol D in FIG. The state shown in FIGS. 1 and 2 is restored. Thereby, the display panel 50 can be returned to a flat shape, and the elastic deformation of the display panel 50 can be released.

本実施の形態の検査用装置１００にあっては、可撓性を有し、表示パネル５０の両面から表示パネル５０を挟持する挟持部４０と、挟持部４０の両端側を保持する一対の保持部２１、２２と、挟持部４０の湾曲度合いを設定すべく保持部２１、２２同士の離隔方向の寸法Ｘを調整する調整部６０とを備える。調整部６０が寸法Ｘを所定値Ｘ１に調整した場合（図１及び図２に示す状態）に、表示パネル５０が平面状の状態で表示パネル５０を挟持部４０から取り外すことができるので、表示パネル５０の弾性変形を解除することができ、弾性により表示パネル５０が弾けて破損することを防止することができる。  The inspection apparatus 100 according to the present embodiment is flexible and has a holding unit 40 that holds the display panel 50 from both sides of the display panel 50 and a pair of holdings that hold both ends of the holding unit 40. Parts 21 and 22, and an adjustment part 60 that adjusts the dimension X in the separation direction between the holding parts 21 and 22 to set the degree of curvature of the holding part 40. When the adjustment unit 60 adjusts the dimension X to the predetermined value X1 (the state shown in FIGS. 1 and 2), the display panel 50 can be detached from the sandwiching unit 40 in a planar state, so that the display The elastic deformation of the panel 50 can be released, and the elastic elasticity of the display panel 50 can be prevented from being broken.

また、本実施の形態の検査用装置１００にあっては、一対の保持部２１、２２の少なくとも一方を離隔方向に沿って移動させる移動機構を備える。具体的には、検査用装置１００は、移動機構として、離隔方向に平行に配置された長尺のレール部１１、１２を備える。調整部６０は、移動機構を用いて一対の保持部２１、２２の少なくとも一方を移動させて寸法Ｘを調整する。具体的には、調整部６０は、一対の保持部２１、２２の少なくとも一方を、レール部１１、１２に沿って移動させて寸法Ｘを調整する。例えば、寸法Ｘが長い（ただし、Ｘ＜Ｘ１）場合には、挟持部４０（すなわち、表示パネル５０）の湾曲度合い（例えば、曲率）を小さくすることができる。また、寸法Ｘが短い（ただし、Ｘ＜Ｘ１）場合には、挟持部４０（すなわち、表示パネル５０）の湾曲度合い（例えば、曲率）を大きくすることができる。一対の保持部２１、２２の少なくとも一方を、レール部１１、１２に沿って移動させるだけで、挟持部４０（すなわち、表示パネル５０）の湾曲度合いを所要の状態に設定することができ、表示パネル５０が所要の曲率になるように湾曲させて検査することができる。  In addition, the inspection apparatus 100 according to the present embodiment includes a moving mechanism that moves at least one of the pair of holding portions 21 and 22 along the separation direction. Specifically, the inspection apparatus 100 includes long rail portions 11 and 12 arranged in parallel to the separation direction as a moving mechanism. The adjusting unit 60 adjusts the dimension X by moving at least one of the pair of holding units 21 and 22 using a moving mechanism. Specifically, the adjusting unit 60 adjusts the dimension X by moving at least one of the pair of holding units 21 and 22 along the rail units 11 and 12. For example, when the dimension X is long (however, X <X1), the degree of curvature (for example, curvature) of the sandwiching portion 40 (that is, the display panel 50) can be reduced. Further, when the dimension X is short (X <X1), the degree of curvature (for example, curvature) of the sandwiching portion 40 (that is, the display panel 50) can be increased. By simply moving at least one of the pair of holding portions 21 and 22 along the rail portions 11 and 12, the degree of bending of the clamping portion 40 (that is, the display panel 50) can be set to a required state, and the display The panel 50 can be inspected by bending it to have a required curvature.

また、本実施の形態の検査用装置１００にあっては、調整部６０が寸法Ｘを所定値Ｘ１に調整した場合、挟持部４０は、平面状をなす。当該寸法Ｘを所定値Ｘ１に調整することにより、挟持部４０を平面状にすることができるので、平面状の表示パネル５０を湾曲させた場合でも、元の平面状に戻すことができ、弾性変形の状態を解除することができる。  In the inspection apparatus 100 according to the present embodiment, when the adjustment unit 60 adjusts the dimension X to the predetermined value X1, the clamping unit 40 has a planar shape. By adjusting the dimension X to the predetermined value X1, the sandwiching portion 40 can be made flat, so that even when the flat display panel 50 is curved, it can be returned to the original flat shape and elastic. The state of deformation can be released.

また、本実施の形態の検査用装置１００にあっては、調整部６０が寸法Ｘを所定値Ｘ１に調整した場合に、挟持部４０に対して表示パネル５０を着脱可能にしてある。例えば、調整部６０が寸法Ｘを所定値Ｘ１に調整した場合に、挟持部４０が平面状をなすようにすれば、表示パネル５０が平面状の状態で表示パネル５０の着脱を行うことができるので、表示パネル５０の着脱時に、弾性により表示パネル５０が弾けて破損することを防止することができる。  In the inspection apparatus 100 according to the present embodiment, the display panel 50 can be attached to and detached from the clamping unit 40 when the adjustment unit 60 adjusts the dimension X to the predetermined value X1. For example, when the adjusting unit 60 adjusts the dimension X to the predetermined value X1, the display panel 50 can be attached and detached while the display panel 50 is in a planar state if the clamping unit 40 has a planar shape. Therefore, when the display panel 50 is attached / detached, it is possible to prevent the display panel 50 from bouncing and being damaged due to elasticity.

また、本実施の形態の検査用装置１００にあっては、挟持部４０は、表示パネル５０を載置する矩形状の底板４２と、表示パネル５０を底板４２の方へ押圧する矩形状の天板４１とを備える。調整部６０が寸法Ｘを所定値Ｘ１に調整した場合に、底板４２に対して天板４１を開放可能にしてある。例えば、調整部６０が寸法Ｘを所定値Ｘ１に調整した場合に、挟持部４０が平面状をなすようにすれば、表示パネル５０が平面状の状態で天板４１を開放可能にしてあるので、天板４１を開放した場合に、弾性により表示パネル５０が弾けて破損することを防止することができる。  Further, in the inspection apparatus 100 of the present embodiment, the clamping unit 40 includes a rectangular bottom plate 42 on which the display panel 50 is placed and a rectangular ceiling plate that presses the display panel 50 toward the bottom plate 42. A plate 41. When the adjustment unit 60 adjusts the dimension X to a predetermined value X1, the top plate 41 can be opened with respect to the bottom plate. For example, when the adjustment unit 60 adjusts the dimension X to the predetermined value X1, the top panel 41 can be opened with the display panel 50 in a planar state if the clamping unit 40 has a planar shape. When the top plate 41 is opened, it is possible to prevent the display panel 50 from bouncing and being damaged due to elasticity.

また、本実施の形態の検査用装置１００にあっては、挟持部４０の方へ光を照射すべく、離隔方向に沿って複数配置された光源部３１〜３６と、調整部６０が調整する寸法Ｘの長短に応じて、各光源部３１〜３６と挟持部４０との離隔距離Ｙを調整する光源調整部７０とを備える。これにより、表示パネル５０を任意の曲率で湾曲させた場合でも、光源部と表示パネル５０（中央部分及び端部側）との距離を同等にすることができ、表示パネル５０を均一の輝度で検査することができる。  Further, in the inspection apparatus 100 of the present embodiment, the light source units 31 to 36 arranged in the separation direction and the adjustment unit 60 adjust the light so as to irradiate light toward the clamping unit 40. A light source adjustment unit 70 that adjusts the separation distance Y between the light source units 31 to 36 and the sandwiching unit 40 according to the length of the dimension X is provided. Thereby, even when the display panel 50 is curved with an arbitrary curvature, the distance between the light source unit and the display panel 50 (in the central portion and the end portion) can be made equal, and the display panel 50 can have a uniform luminance. Can be inspected.

本実施の形態は、液晶表示パネルの検査用に限定されるものではなく、表示装置に表示パネルを装着する場合、可撓性の表示パネルを弾性変形させて湾曲させる構造の表示パネルであれば、本実施の形態の検査用装置を適用することができる。  The present embodiment is not limited to the inspection of the liquid crystal display panel, and when the display panel is mounted on the display device, any display panel having a structure in which the flexible display panel is elastically deformed and curved can be used. The inspection apparatus of this embodiment can be applied.

また、本実施の形態では、検査用装置１００は、２本のレール部１１、１２を備えていたが、レール部１１、１２の数は、２本に限られず、１本でもよいし、３本以上でもよい。  In the present embodiment, the inspection apparatus 100 includes the two rail portions 11 and 12. However, the number of the rail portions 11 and 12 is not limited to two, and may be one or three. It may be more than a book.

また、本実施の形態では、検査用装置１００は、移動機構として、レール部１１、１２を備え、調整部６０は、一対の保持部２１、２２の少なくとも一方をレール部１１、１２に沿って移動させて寸法Ｘを調整したが、これに限られない。例えば、検査用装置１００は、レール部１１、１２以外のその他の移動機構、例えばボールねじ又はエアシリンダを備え、調整部６０は、一対の保持部２１、２２の少なくとも一方を、その他の移動機構（例えば、ボールねじ又はエアシリンダ）を用いて離隔方向に沿って移動させて寸法Ｘを調整してもよい。  In this embodiment, inspection device 100 is provided with rail parts 11 and 12 as a movement mechanism, and adjustment part 60 has at least one of a pair of holding parts 21 and 22 along rail parts 11 and 12. Although it was moved and the dimension X was adjusted, it is not restricted to this. For example, the inspection apparatus 100 includes a moving mechanism other than the rail parts 11 and 12, such as a ball screw or an air cylinder, and the adjusting unit 60 uses at least one of the pair of holding parts 21 and 22 as another moving mechanism. For example, the dimension X may be adjusted by moving along the separation direction using a ball screw or an air cylinder.

また、上述の各実施例において記載されている構成は、お互いに組み合わせることが可能であり、組み合わせをすることにより、新しい技術的特徴を形成することができる。  In addition, the configurations described in the above-described embodiments can be combined with each other, and a new technical feature can be formed by combining the configurations.

１１、１２ レール部
２１、２２ 保持部
３１、３２、３３、３４、３５、３６ 光源部
４０ 挟持部
４１ 天板
４２ 底板
５０ 表示パネル
６０ 調整部
７０ 光源調整部DESCRIPTION OF SYMBOLS 11, 12 Rail part 21,22 Holding part 31,32,33,34,35,36 Light source part 40 Clamping part 41 Top plate 42 Bottom plate 50 Display panel 60 Adjustment part 70 Light source adjustment part

Claims (7)

可撓性を有する表示パネルを湾曲させて検査するための検査用装置であって、
可撓性を有し、前記表示パネルの両面から該表示パネルを挟持する挟持部と、
該挟持部の両端側を保持する一対の保持部と、
該挟持部の湾曲度合いを設定すべく前記保持部同士の離隔方向の寸法を調整する調整部と
を備えることを特徴とする検査用装置。An inspection device for inspecting a display panel having flexibility by bending the display panel,
A holding part that has flexibility and holds the display panel from both sides of the display panel;
A pair of holding parts for holding both ends of the clamping part;
An inspection device comprising: an adjustment unit that adjusts a dimension in a separation direction between the holding units so as to set a degree of curvature of the clamping unit. 前記一対の保持部の少なくとも一方を前記離隔方向に沿って移動させる移動機構を備え、
前記調整部は、
前記移動機構を用いて前記一対の保持部の少なくとも一方を移動させて前記寸法を調整することを特徴とする請求項１に記載の検査用装置。A moving mechanism for moving at least one of the pair of holding portions along the separation direction;
The adjustment unit is
The inspection apparatus according to claim 1, wherein the dimension is adjusted by moving at least one of the pair of holding portions using the moving mechanism. 前記移動機構は、
前記離隔方向に平行に配置された長尺のレール部を備え、
前記調整部は、
前記一対の保持部の少なくとも一方を、前記レール部に沿って移動させて前記寸法を調整することを特徴とする請求項２に記載の検査用装置。The moving mechanism is
Comprising a long rail portion arranged parallel to the separation direction;
The adjustment unit is
The inspection apparatus according to claim 2, wherein at least one of the pair of holding portions is moved along the rail portion to adjust the dimensions. 前記調整部が前記寸法を所定値に調整した場合、前記挟持部は、平面状をなすことを特徴とする請求項１から請求項３までのいずれか１項に記載の検査用装置。  The inspection apparatus according to any one of claims 1 to 3, wherein when the adjustment unit adjusts the dimension to a predetermined value, the clamping unit has a planar shape. 前記調整部が前記寸法を前記所定値に調整した場合に、前記挟持部に対して前記表示パネルを着脱可能にしてあることを特徴とする請求項４に記載の検査用装置。  The inspection apparatus according to claim 4, wherein the display panel is detachable from the clamping unit when the adjustment unit adjusts the dimension to the predetermined value. 前記挟持部は、
前記表示パネルを載置する矩形状の底板と、
前記表示パネルを前記底板の方へ押圧する矩形状の天板と
を備え、
前記調整部が前記寸法を前記所定値に調整した場合に、前記底板に対して前記天板を開放可能にしてあることを特徴とする請求項４又は請求項５に記載の検査用装置。The clamping part is
A rectangular bottom plate on which the display panel is placed;
A rectangular top plate that presses the display panel toward the bottom plate, and
6. The inspection apparatus according to claim 4, wherein the top plate can be opened with respect to the bottom plate when the adjustment unit adjusts the dimension to the predetermined value. 前記挟持部の方へ光を照射すべく、前記離隔方向に沿って複数配置された光源部と、
前記調整部が調整する前記寸法の長短に応じて、各光源部と前記挟持部との離隔距離を調整する光源調整部と
を備えることを特徴とする請求項１から請求項６までのいずれか１項に記載の検査用装置。A plurality of light source units arranged along the separation direction to irradiate light toward the clamping unit;
The light source adjustment part which adjusts the separation distance of each light source part and the said clamping part according to the length of the said dimension which the said adjustment part adjusts is provided, These are provided. The inspection apparatus according to item 1.
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